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Purchased Loans - Changes in Restructured Loans (Details) - Purchased $ in Thousands | 12 Months Ended
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Dec. 31, 2018 USD ($) loan | Dec. 31, 2017 USD ($) loan
Number of Loans |  |
Beginning balance (loans) | loan | 72 | 42
Additional loans with concessions (loans) | loan | 5 | 36
Reclassified as performing (loans) | loan | 4 | 9
Reclassified as nonperforming (loans) | loan | (13) | (10)
Paid in full (loans) | loan | (14) | (3)
Charge-offs (loans) | loan |  | (1)
Principal paydowns (loans) | loan | 0 | 0
Lapse of concession period (loans) | loan |  | (1)
Ending balance (loans) | loan | 54 | 72
Recorded Investment |  |
Beginning balance | $ | $ 8,965 | $ 4,028
Additional loans with concessions | $ | 712 | 5,703
Reclassified from nonperforming | $ | 435 | 838
Reclassified as nonperforming | $ | (1,229) | (786)
Paid In full | $ | (744) | (323)
Charge-offs | $ |  | (17)
Principal paydowns | $ | (644) | (377)
Lapse of concession period | $ |  | (101)
Ending balance | $ | $ 7,495 | $ 8,965

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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82895541&loc=d3e18845-111554 + Details
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